Uchijima Y, Hiraga S, Akutsu M, Yoshida K, Hobo M, Okada K
Hinyokika Kiyo. 1984 Dec;30(12):1843-9.
A 7-year-old boy was brought to our clinic with the chief complaint of terminal pain on urination. Rectal examination revealed a prostate of almost normal size and consistency, but seminal vesicles were palpated to be hard and in a painful mass. Plain x-ray and urethrogram demonstrated several small stones in the posterior urethra and in seminal vesicles. In the first operation, the stones located in the posterior urethra were removed through the transvesical approach, and the seminal vesicular stones were extirpated in the next operation. The stones were found to consist of magnesium ammonium phosphate by infrared rays spectrum analysis. The histopathological findings of the partially resected seminal vesicles showed no inflammatory or tuberculous changes. Twenty cases of stones in seminal vesicle, in seminal canal, or in ejaculatory duct have been reported in the Japanese literature. Etiology, pathology, clinical problems and therapy of the stones of seminal tract are discussed in relation to the cases reported in Japan including the present case.
一名7岁男孩因排尿终末疼痛为主诉被送至我们诊所。直肠检查显示前列腺大小及质地基本正常，但触诊精囊坚硬且有疼痛性肿块。平片及尿道造影显示后尿道及精囊内有多个小结石。首次手术经膀胱途径取出位于后尿道的结石，第二次手术切除精囊结石。经红外线光谱分析发现结石由磷酸镁铵组成。部分切除的精囊组织病理学检查未发现炎症或结核改变。日本文献报道了20例精囊、输精管或射精管结石病例。结合日本报道的病例（包括本病例）讨论了精道结石的病因、病理、临床问题及治疗。
